163255645 has 32 divisors (see below), whose sum is σ = 237323520. Its totient is φ = 105423360.

The previous prime is 163255621. The next prime is 163255669. The reversal of 163255645 is 546552361.

It is an interprime number because it is at equal distance from previous prime (163255621) and next prime (163255669).

It is not a de Polignac number, because 163255645 - 2¹³ = 163247453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39654 + ... + 43576.

It is an arithmetic number, because the mean of its divisors is an integer number (7416360).

Almost surely, 2^163255645 is an apocalyptic number.

It is an amenable number.

163255645 is a deficient number, since it is larger than the sum of its proper divisors (74067875).

163255645 is a wasteful number, since it uses less digits than its factorization.

163255645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005.

The product of its digits is 108000, while the sum is 37.

The square root of 163255645 is about 12777.1532431915. The cubic root of 163255645 is about 546.5409856740.

The spelling of 163255645 in words is "one hundred sixty-three million, two hundred fifty-five thousand, six hundred forty-five".